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Abstract

When a diastolic murmur is present at the base of the heart, it may be difficult on clinical grounds to determine whether or not aortic insufficiency is present. Further, in patients in whom this lesion definitely exists, the magnitude of aortic regurgitant flow has been the subject of considerable speculation among both clinicians and physiologists. A technic has been devised that not only makes possible the detection of aortic insufficiency but also permits an estimate of the regurgitant volume to be made.